Pith Number

pith:QXXSBVXE

pith:2019:QXXSBVXELCABKSAD5XZWVECATG

not attested not anchored not stored refs pending

Gravity inversion using a directional filtering method

Orlando Silva, Pedro Nogueira

arxiv:1908.07756 v1 · 2019-08-21 · physics.geo-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QXXSBVXELCABKSAD5XZWVECATG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T23:59:00.920793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85ef20d6e45880154803edf36a904099a59ab7e006b5b421a9c9d57ae6235fb4

Aliases

arxiv: 1908.07756 · arxiv_version: 1908.07756v1 · doi: 10.48550/arxiv.1908.07756 · pith_short_12: QXXSBVXELCAB · pith_short_16: QXXSBVXELCABKSAD · pith_short_8: QXXSBVXE

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QXXSBVXELCABKSAD5XZWVECATG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 85ef20d6e45880154803edf36a904099a59ab7e006b5b421a9c9d57ae6235fb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "920c711ba105e3e4026af53a6ab7b508f4fe99392521d729d33ede015ff7c33e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2019-08-21T09:12:55Z",
    "title_canon_sha256": "01204bea1f3eb91b6551ab447fedc7c616c04256c9a8ea58c64cd9ce18fd1745"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07756",
    "kind": "arxiv",
    "version": 1
  }
}